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Shale and Kenyte


Kenyte and Shale


Definition

Definition
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles   
Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix   

History
  
  

Origin
Unknown   
Mount Kenya   

Discoverer
Unknown   
J. W. Gregory   

Etymology
From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,   
From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900   

Class
Sedimentary Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Clastic, Splintery   
Glassy, Granular   

Color
Black, Brown, Buff, Green, Grey, Red, Yellow   
Brown, Buff, Cream, Green, Grey, Pink, White   

Maintenance
More   
More   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Muddy   
Banded and Foilated   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration   
Decorative Aggregates, Entryways, Homes, Interior Decoration, Kitchens   

Exterior Uses
As Building Stone, As Facing Stone, Office Buildings   
As Building Stone, Garden Decoration, Paving Stone   

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Sculpture   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Pottery   
Cemetery Markers, Creating Artwork   

Types

Types
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale   
Not Available   

Features
Easily splits into thin plates, Generally rough to touch, Very fine grained rock   
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Jantar Mantar in India   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Present   
Absent   

Formation

Formation
Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.   
Kenyte is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

Mineral Content
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides   
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite   

Compound Content
Ca, Fe, Mg, Silicon Dioxide, Sodium   
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion   
Chemical Erosion, Coastal Erosion   

Properties

Physical Properties
  
  

Hardness
3   
5.5-6   

Grain Size
Very fine-grained   
Fine Grained   

Fracture
Not Available   
Conchoidal to Uneven   

Streak
White   
White, Greenish White or Grey   

Porosity
Highly Porous   
Highly Porous   

Luster
Dull   
Greasy to Dull   

Compressive Strength
95.00 N/mm2   
20
150.00 N/mm2   
14

Cleavage
Slaty   
Poor   

Toughness
2.6   
Not Available   

Specific Gravity
2.2-2.8   
2.6   

Transparency
Opaque   
Translucent to Opaque   

Density
2.4-2.8 g/cm3   
2.6 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.39 kJ/Kg K   
23
Not Available   

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Impact Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia   
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam   

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania   
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   
Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden   

Others
Not Yet Found   
Greenland   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela   
Brazil, Chile, Colombia, Uruguay, Venezuela   

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia   
New Zealand, Queensland, South Australia, Tasmania, Western Australia   

Summary >>
<< Reserves

All about Shale and Kenyte Properties

Know all about Shale and Kenyte properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Kenyte belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Kenyte is Glassy, Granular. Shale appears Muddy and Kenyte appears Banded and Foilated. The luster of Shale is dull while that of Kenyte is greasy to dull. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Kenyte is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Shale are creating artwork, pottery and that of Kenyte are cemetery markers, creating artwork.

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